Neuroscience

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Active and Passive Currents

NEURO-DYRMGW

Conduction of action potentials in myelinated axons requires both active and passive currents.

Which of the following is CORRECT about these two types of currents?

A

The passive currents flow through passive ion channels.

B

The active currents flow along the interior of the axon.

C

The active currents flow through voltage-gated sodium channels at the Nodes of Ranvier.

D

The passive currents flow through voltage-gated sodium channels at the Nodes of Ranvier.